Julianne Hough blonde bike ride filming rock of ages sunglasses dancing with the stars Julianne Hough blonde bike ride filming rock of ages sunglasses dancing with the stars

Julianne Hough wants to make sure she's in tip top shape for her upcoming role in Rock of Ages ... opposite Tom Cruise. Judging by her form on the bike, she's doing a pretty good job so far! Earlier in the week, we caught the former Dancing With the Stars pro going for a run.

Hough is keeping mighty busy in Miami where the movie is being filmed. Too bad beau Ryan Seacrest isn't able to ride along with her. We have a feeling that would be a distraction.

Way to stay on track with your fitness, Julianne! See her sexy Rock of Ages co-star Diego Boneta grabbing a drink post workout ... after the jump.